Cauchy, Augustin Louis
born 21. August 1789 in Paris; died 23. May 1857 in SceauxBrief von Izmail Ivanovič Sreznevskij an Karl Ernst von Baer, 25.04.1849 [25 avril 1849]
Sankt Petersburg, 25/04/1849Poisson, Siméon Denis
born 21. June 1781 in Pithiviers; died 25. April 1840 in Sceaux